<html lang="en">
	<head>
		<meta charset="UTF-8" />
		<title>大哥别删我</title>

		<style>
			* {
				box-sizing: border-box;
				font: inherit;
			}

			html {
				overflow: hidden;
				color: #333;
				font-size: 62.5%;
			}
			@media screen and (max-width: 480px) {
				html {
					font-size: 50%;
				}
			}
			html body {
				font-size: 2rem;
				padding: 0;
				margin: 0;
				width: 100vw;
				height: 100vh;
				background-image: linear-gradient(to left bottom, #444, #222);
				overflow: hidden;
				font-family: 'Rubik', sans-serif;
			}

			.Confirm {
				position: absolute;
				display: flex;
				flex-direction: column;
				overflow: hidden;
				top: 50%;
				left: 50%;
				transform: translate(-50%, -50%);
				width: 72rem;
				max-width: 100%;
				min-width: 34rem;
				max-height: 100%;
				height: 46rem;
				background-color: #ccc;
				border-radius: 1rem;
				box-shadow: 0px 10px 5px -3px rgba(0, 0, 0, 0.2);
			}
			.Confirm-Header {
				display: flex;
				align-items: center;
				position: relative;
				flex: 0 0 4rem;
				margin: 0 1rem;
				border-bottom: solid 1px rgba(0, 0, 0, 0.1);
				white-space: nowrap;
			}
			.Confirm-Header-Button {
				display: block;
				width: 1.6rem;
				height: 1.6rem;
				border-radius: 1rem;
				flex: 0 0 auto;
				transition: background-color 0.3s;
			}
			.Confirm-Header-Button:not(:last-of-type) {
				margin-right: 1rem;
			}
			.Confirm-Header-Button_Close {
				background-color: #a43;
			}
			.Confirm-Header-Button_Close:hover {
				background-color: #c85a48;
			}
			.Confirm-Header-Button_Maximize {
				background-color: #cb3;
			}
			.Confirm-Header-Button_Maximize:hover {
				background-color: #d6c95c;
			}
			.Confirm-Header-Button_Minimize {
				background-color: #6a4;
			}
			.Confirm-Header-Button_Minimize:hover {
				background-color: #81c061;
			}
			.Confirm-Header-Title {
				margin: 0;
				padding: 0;
				transform: translateX(50%);
				margin-right: 50%;
				margin-left: auto;
			}
			.Confirm-Body {
				flex: 1;
				display: flex;
				align-items: flex-end;
				justify-content: space-between;
				position: relative;
				margin: 2rem 4rem;
			}
			.Confirm-Body-Title {
				margin: 0;
				padding: 0;
				position: absolute;
				transform: translateY(-50%);
				top: 5%;
				text-align: center;
				width: 100%;
			}
			.Confirm-Body-Button,
			.Confirm-Body-Button:link,
			.Confirm-Body-Button:visited {
				color: #fff;
				border-radius: 1rem;
				text-decoration: none;
				padding: 1rem 2rem;
				margin-bottom: 1rem;
				min-width: 10rem;
				text-align: center;
				transition: background-color 0.3s;
			}
			.Confirm-Body-Button_Delete {
				background-color: #a43;
			}
			.Confirm-Body-Button_Delete:hover {
				background-color: #c85a48;
			}
			.Confirm-Body-Button_Cancel {
				background-color: #6a4;
			}
			.Confirm-Body-Button_Cancel:hover {
				background-color: #81c061;
			}

			.Boi {
				--happiness: 0.9;
				--derp: 1;
				--px: 0.5;
				--py: 0.5;
				width: 22rem;
				max-width: 100%;
				height: 22rem;
				top: 50%;
				left: 50%;
				transform: translate(-50%, -50%);
				background-image: radial-gradient(#f7e0b2, #eb5);
				border-radius: 100%;
				overflow: hidden;
				margin: 0;
				align-self: center;
				flex: 0 0 auto;
				border: solid 2px #ecb23e;
				box-shadow: 0px 0px 5px rgba(0, 0, 0, 0.2);
			}
			.Boi,
			.Boi * {
				position: absolute;
			}
			.Boi::before {
				content: '';
				display: block;
				width: 100%;
				height: 100%;
				top: 0;
				left: 0;
				background-image: linear-gradient(
					to bottom,
					#5a8,
					rgba(85, 170, 136, 0)
				);
				opacity: calc(1 - var(--happiness));
			}
			.Boi-Blush {
				width: 20%;
				height: 10%;
				background-color: rgba(255, 100, 100, 0.3);
				border: 3px solid rgba(255, 100, 100, 0.3);
				top: calc(45% + var(--py) * 10%);
				border-radius: 100%;
				opacity: calc(var(--happiness) * var(--happiness) * 0.9 + 0.1);
			}
			.Boi-Blush_L {
				left: calc(7% + var(--px) * 2%);
			}
			.Boi-Blush_R {
				right: calc(9% - var(--px) * 2%);
			}
			.Boi-Eye {
				width: calc(26% - var(--happiness) * 2%);
				height: calc(26% - var(--happiness) * 2%);
				background-color: #f6f6f6;
				border-radius: 100%;
				top: calc(25% + var(--py) * 10%);
				overflow: hidden;
			}
			.Boi-Eye_L {
				left: calc(18% + var(--px) * 4%);
			}
			.Boi-Eye_L::after {
				transform: translate(
					calc((var(--px) + var(--derp) * 0.5) * 100%),
					calc((var(--py) + var(--derp) * 0.5) * 100%)
				);
			}
			.Boi-Eye_R {
				right: calc(22% - var(--px) * 4%);
			}
			.Boi-Eye_R::after {
				transform: translate(
					calc((var(--px) + var(--derp) * -0.3) * 100%),
					calc((var(--py) + var(--derp) * -0.3) * 100%)
				);
			}
			.Boi-Eye::after {
				content: '';
				display: block;
				background-color: #421;
				width: calc(55% - var(--happiness) * 10%);
				height: calc(55% - var(--happiness) * 10%);
				border-radius: 100%;
			}
			.Boi-Mouth {
				width: calc(51% - var(--happiness) * 2%);
				height: calc(26% - var(--happiness) * 2%);
				background-color: #a33;
				border-radius: calc((1 - var(--happiness)) * 10em)
					calc((1 - var(--happiness)) * 10em) calc(var(--happiness) * 16em)
					calc(var(--happiness) * 16em);
				top: calc(57.5% + var(--py) * 5%);
				left: calc(47.5% + var(--px) * 5%);
				transform: translateX(-50%);
				overflow: hidden;
				border: 3px solid #962d2d;
				/* fix safari overflow breach */
				/* -webkit-mask-image: -webkit-radial-gradient(white, black); */
			}
			.Boi-Mouth::before {
				content: '';
				display: block;
				position: absolute;
				width: 20%;
				height: 20%;
				top: 0;
				left: 50%;
				background-color: white;
				border-radius: 0 0 0.5rem 0.5rem;
			}
			.Boi-Mouth::after {
				content: '';
				display: block;
				position: absolute;
				width: 60%;
				height: 50%;
				left: 10%;
				bottom: 0;
				background-color: rgba(0, 0, 0, 0.2);
				border-radius: 20rem 20rem 0 0;
			}
		</style>
	</head>
	<body>
		<section class="Confirm">
			<div class="Confirm-Header">
				<a
					class="Confirm-Header-Button Confirm-Header-Button_Close"
					href="javascript: void(0)"
				></a>
				<a
					class="Confirm-Header-Button Confirm-Header-Button_Minimize"
					href="javascript: void(0)"
				></a>
				<a
					class="Confirm-Header-Button Confirm-Header-Button_Maximize"
					href="javascript: void(0)"
				></a>
				<h1 class="Confirm-Header-Title">软件卸载</h1>
			</div>

			<div class="Confirm-Body">
				<h2 class="Confirm-Body-Title">是否确实要卸载软件？</h2>
				<figure
					class="Boi"
					style="--happiness: 0.9; --derp: 1; --px: 0.5; --py: 0.5"
				>
					<div class="Boi-Blush Boi-Blush_L"></div>
					<div class="Boi-Blush Boi-Blush_R"></div>
					<div class="Boi-Eye Boi-Eye_L"></div>
					<div class="Boi-Eye Boi-Eye_R"></div>
					<div class="Boi-Mouth"></div>
				</figure>
				<a
					class="Confirm-Body-Button Confirm-Body-Button_Cancel"
					href="javascript: void(0)"
					>保留</a
				>
				<a
					class="Confirm-Body-Button Confirm-Body-Button_Delete"
					href="javascript: void(0)"
					>卸载</a
				>
			</div>
		</section>

		<script>
			const confirm = document.querySelector('.Confirm');
			const boi = document.querySelector('.Boi');
			const btnDelete = document.querySelector('.Confirm-Body-Button_Delete');
			const btnCancel = document.querySelector('.Confirm-Body-Button_Cancel');
			const current = {
				happiness: 0.9,
				derp: 1,
				px: 0.5,
				py: 0.5
			};
			const target = { ...current };

			confirm.addEventListener('mousemove', onMouseMove);
			confirm.addEventListener('mouseleave', onMouseLeave);

			function onMouseMove({ clientX: x, clientY: y }) {
				let dx1 =
					x -
					btnDelete.getBoundingClientRect().x -
					btnDelete.getBoundingClientRect().width * 0.5;
				let dy1 =
					y -
					btnDelete.getBoundingClientRect().y -
					btnDelete.getBoundingClientRect().height * 0.5;
				let dx2 =
					x -
					btnCancel.getBoundingClientRect().x -
					btnCancel.getBoundingClientRect().width * 0.5;
				let dy2 =
					y -
					btnCancel.getBoundingClientRect().y -
					btnCancel.getBoundingClientRect().height * 0.5;
				let px =
					(x - confirm.getBoundingClientRect().x) /
					confirm.getBoundingClientRect().width;
				let py =
					(y - confirm.getBoundingClientRect().y) /
					confirm.getBoundingClientRect().height;
				let distDelete = Math.sqrt(dx1 * dx1 + dy1 * dy1);
				let distCancel = Math.sqrt(dx2 * dx2 + dy2 * dy2);
				let happiness = Math.pow(distDelete / (distCancel + distDelete), 0.75);

				target.happiness = happiness;
				target.derp = 0;
				target.px = px;
				target.py = py;
			}

			function onMouseLeave() {
				target.happiness = 0.9;
				target.derp = 1;
				target.px = 0.5;
				target.py = 0.5;
			}

			function update() {
				for (let prop in target) {
					if (target[prop] === current[prop]) {
						continue;
					} else if (Math.abs(target[prop] - current[prop]) < 0.01) {
						current[prop] = target[prop];
					} else {
						current[prop] += (target[prop] - current[prop]) * 0.1;
					}
					boi.style.setProperty(`--${prop}`, current[prop]);
				}
				requestAnimationFrame(update);
			}

			update();
		</script>
	</body>
</html>
